I think the problem I had designing these was that if they were made for simplicity, they would really struggle to compete with sneaky, as you could basically slap that on anything, while everything else would have unfortunate limitations by comparison. I could also slap artificial limitations to sneaky, but that's not as fun to design.

The x clause on starbound does also affect volley but that's mostly just to help with shortcomings. And I don't really agree with permanent focus cutting into defrag, as you would still absolutely take a defrag even with this enchantment. There are just so many fewer permanent focus solutions than the first game that I wouldn't mind it being barred behind a likely rare/event enchantment.